EP 4372440 A1 20240522 - BEAM CONTROLLER AND BEAM CONTROLLING METHOD
Title (en)
BEAM CONTROLLER AND BEAM CONTROLLING METHOD
Title (de)
STRAHLSTEUERUNG UND STRAHLSTEUERUNGSVERFAHREN
Title (fr)
DISPOSITIF DE COMMANDE DE FAISCEAU ET PROCÉDÉ DE COMMANDE DE FAISCEAU
Publication
Application
Priority
- CN 202110801155 A 20210715
- CN 2022093063 W 20220516
Abstract (en)
The present invention relates to a beam controller based on an optical phased array. The beam controller comprises an optical phased array, a free-space beam combining area, and a shared grating transmitter. The optical phased array comprises: a beam splitter and a waveguide array coupled to the beam splitter. The beam splitter is configured to equally split an initial light beam into a plurality of sub-beams. The waveguide array comprises: a plurality of waveguides arranged in one-to-one correspondence to the sub-beams. The waveguides are configured to receive and transmit the sub-beams. Transmission tail sections of the plurality of waveguides are concentrated in the free-space beam combining area in a fan shape manner. The free-space beam combining area is configured to: enable the plurality of sub-beams to be combined on an image plane. The shared grating transmitter is configured to: diffract and transmit a combined light beam that the plurality of sub-beams are combined on the image plane. The beam controller can control the combined light beam to have higher scan output efficiency while achieving large-angle emission.
IPC 8 full level
CPC (source: CN EP KR)
G02B 6/4204 (2013.01 - CN KR); G02B 6/4206 (2013.01 - CN KR); G02B 6/43 (2013.01 - CN KR); G02F 1/2955 (2013.01 - EP); G01S 7/4817 (2013.01 - EP); G02F 1/0147 (2013.01 - EP); G02F 1/212 (2021.01 - EP); G02F 2203/50 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4372440 A1 20240522; CN 113608305 A 20211105; CN 113608305 B 20220621; JP 2024524593 A 20240705; KR 20240021992 A 20240219; WO 2023284399 A1 20230119
DOCDB simple family (application)
EP 22841039 A 20220516; CN 202110801155 A 20210715; CN 2022093063 W 20220516; JP 2024500584 A 20220516; KR 20247004357 A 20220516